| Olonne-sur-Mer to Popovo | 1,379.73 mi (2,220.46 km) |
| Olonne-sur-Mer to Provadia | 1,440.53 mi (2,318.32 km) |
| Olonne-sur-Mer to Radnevo | 1,390.64 mi (2,238.02 km) |
| Olonne-sur-Mer to Radomir | 1,242.72 mi (1,999.96 km) |
| Olonne-sur-Mer to Rakitovo | 1,311.11 mi (2,110.03 km) |
| Olonne-sur-Mer to Rakovski | 1,344.98 mi (2,164.54 km) |
| Olonne-sur-Mer to Razgrad | 1,389.13 mi (2,235.59 km) |
| Olonne-sur-Mer to Razlog | 1,284.60 mi (2,067.36 km) |
| Olonne-sur-Mer to Ruse | 1,356.18 mi (2,182.56 km) |
| Olonne-sur-Mer to Samokov | 1,276.83 mi (2,054.86 km) |
| Olonne-sur-Mer to Sandanski | 1,284.57 mi (2,067.32 km) |
| Olonne-sur-Mer to Sevlievo | 1,333.93 mi (2,146.75 km) |
| Olonne-sur-Mer to Shumen | 1,414.50 mi (2,276.41 km) |
| Olonne-sur-Mer to Silistra | 1,412.14 mi (2,272.62 km) |
| Olonne-sur-Mer to Sliven | 1,400.09 mi (2,253.22 km) |
